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CVE-2023-5536

Estado: ModificadaMedia (6.4)—

A feature in LXD (LP#1829071), affects the default configuration of Ubuntu Server which allows privileged users in the lxd group to escalate their privilege to root without requiring a sudo password.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Canonical — Ubuntu Linux

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-5536",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@ubuntu.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4,
        "exploitabilityScore": 0.6
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.4,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 0.5
      }
    ]
  },
  "affected": [
    {
      "source": "security@ubuntu.com",
      "affectedData": [
        {
          "vendor": "Canonical",
          "product": "Ubuntu Server",
          "versions": [
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "24.04",
              "versionType": "semver"
            }
          ],
          "platforms": [
            "Linux"
          ],
          "packageName": "Linux"
        }
      ]
    }
  ],
  "published": "2023-12-12T02:15:09.003",
  "references": [
    {
      "url": "https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/1829071",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "source": "security@ubuntu.com"
    },
    {
      "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5536",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security@ubuntu.com"
    },
    {
      "url": "https://discourse.ubuntu.com/t/easy-multi-user-lxd-setup/26215/4",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@ubuntu.com"
    },
    {
      "url": "https://ubuntu.com/security/CVE-2023-5536",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@ubuntu.com"
    },
    {
      "url": "https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/1829071",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5536",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://discourse.ubuntu.com/t/easy-multi-user-lxd-setup/26215/4",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://ubuntu.com/security/CVE-2023-5536",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-276"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A feature in LXD (LP#1829071), affects the default configuration of Ubuntu Server which allows privileged users in the lxd group to escalate their privilege to root without requiring a sudo password."
    },
    {
      "lang": "es",
      "value": "Una característica en LXD (LP#1829071) afecta la configuración predeterminada de Ubuntu Server que permite a los usuarios privilegiados del grupo lxd escalar su privilegio a root sin requerir una contraseña sudo."
    }
  ],
  "lastModified": "2026-06-17T06:48:47.363",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B9B542C8-8ABA-4985-A157-8E24F43CE6DB",
              "versionEndExcluding": "24.04"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@ubuntu.com"
}